Armored grease retainer with washer and spacer



W. A. HEINZE Feb. 23, 1937.

ARMORED GREASE RETAINER WITH WASHER AND SPACER Original Filed April 9, 1934 Patented Feb. 23, 193? ARMOBED GREASE RETE We" WASHER AND SPACER,

"William A. Heinze, Chicago, Iii, designer to I Victor Manufacturing, 8: Gasket (Com Chicago, IlL, a corporation of oie @rlglnal application April 9, 1934, Serisi No. 719,677. Divided and agicotiom iii,

1935, Serial No. 22,045

'iiiis invention relates to on improved grease reta ner, and Fees for one of its principal objects the provision oi e. device for retaining oil or grease in the bearings oi rotating shafts, and which includes e. fieizi'oie pecking element mounted in the retainer.

*filsis application constitutes o division of applicenis origiriei eooiicotiori for potent on "Armored grease retainer ritii wesiier and soccer, filed Aprii s, 1934, S i No. iiiifiiii.

0m oi time izrizio. zit oojects of this invention the provision oi o novel holding and armcrixig ms for pecking which sizeii provide 1 oer contact with the rotatable element, thereby eiimineting possibilities leakage.

Another impel-toot object of the iovention is the provision in retainer oi on armored pecking oi leather or tire which, on account of its construction, siioii orovide o better resisterice to blows or other extraneous forces directed against a greese retainer, porticuierly in efforts to piece the some in eosition.

A. stiii further important object of the inventioo is to provide, on armored. packing for grease retainers, means whereby the packing itself will be constrained into e shops more neoriy approximating e. right-single, one leg of which shall be perpendicular to the rotating shaft end the other leg approxirristely parallel thereto.

Another end stilifurther important object is the provision in o grease retainer of means for holding the leather or other flexible pecking in closed relationship with the shaft or other rotatable element whereby possibility of leakage is definitely overcome.

A stiil further object is the construction of o. novel pecking element for use in grease retainers of this type wherein a saving of approximately half of the original amount of leather heretofore thought necessary is accomplished.

Other and further important objects of the invention will be apparent from the disclosures in the accompanying drawing and following specification.

The invention, in a, preferred form, is illusireted in the drawing and'herelnafter more fully described.

In the drawing:

Figure l is a, perspective view of one of the improved grease retainers of this invention, parts being cut away to show the interior construction.

Figure 2 is a modified form of Figure 1, illustrating a. more definite embodiment of the armored feature.

(CE. Emil-=1) iroted iii is, embodyingssligi t modification.

shot -ii1 time drawing:

The reference mimerei iii indicates generally a. casing for one of the improved grease reteiners of this invention, the some preferably embodying on simmer sheet metei cup-iiise element having the usuoi opening therethrougli for the powoge oi a, rotatable shaft about which the grease retrainer is estimated to be mounted.

Siidololy fiteri into the outer casing iii is on inner (Basin-5 21% which is epproximetely L-sheped in cross-section es best shown in Figure 1 and has an inwardly bent inner edge M, which edge, together with s reietiveiy thick metei washer 9%, sets to clerngo the offset annular rim of e pecking eiernent id which is preferably of ieother or some similar fieizibie materiel. It will be noted that the in=tumed edge i i of the element i2 closely grips the edge of the leather packing against the inner perioiiery of the washer iii, which is seated sgo-imt the inner side fsce of the shell ii.

A species member 2% which may be ieminoted, if desired, is positioned between the casings i o end i2, end is preferably L-sheped as shown, with one ice thereof bearing against the inner face of the cup-shaped element is and the edge of the other leg bearing against the metal washer is. This provides as reinforcement against distortion due to blows or other force which might be used in placing the retainer in desired position, and further assures a proper operating ,space for o, garter spring or the like 22 which is positioned in annular relationship with the inner ofi'set face of the packing element Ii. In this manner, a. satisfactory surface contact between the packing element is and the rotating shaft is provided and undesirable leakage avoided.

In Figure 2 is shown a modification oi the invention wherein on outer shell is is provided, and into this shell is fitted a. combination armor and clamping element for the packing 26 which clamping element comprises a sheet metal ennular structure 28, preferably U-sheped in crosssection as shown in Figure 2, one of the legs of which is shorter than the other and is turned inwardly as shown at it to provide a suitable clamping engagement with the in-turned end of the leather packing 26.

The longer leg of the U-shaped element 28 is also turned inwardly as illustrated at 32 to provide a practically right-angle bend which assists in shaping a correspondingly right-angle bend in the leather or other packing 26, and furthermore, acts to positively force the leather packing into quite an extensive surface contact with the rotating shaft about which the retainer is positioned.

A relatively heavy metal washer 34 is inserted into the outer or upper end of the U-shaped structure 28 whereby a suitable spacing of the leather packing is accomplished and an additional reinforcement against blows or other stresses and strains is provided.

A spacing element 36 is inserted between the outer shell 24 and the inner face of the combination armor and reinforcement, and the usual garter spring 38 is also employed.

In Figure 3 is illustrated another modification of the invention wherein an outer shell 40 is provided which is beaded as shown at 42 to provide a suitable stop and retaining means for an armored packing element which consists of the usual leather 44, this, in turn, being mounted in a combination of a fairly heavy sheet metal outer case 46 and a relatively thin sheet metal inner case 48. The relatively thin sheet metal inner case is shaped and compressed against the inner face of the leather, and has its outer periphery inclosed by the in-turned inner end of the heavier sheet metal element 46, all as best shown in Fi ure 3.

Inwardly struck lugs or tangs 50 are formed in the relatively thin inner metal sheath 48 so as to securely hold the leather in position and also prevent undesirable turning thereof while the shaft is rotating. A garter spring 52 is provided as is common in constructions of this type. In this instance, no further reinforcing or spacing element is necessary, as the armored leather provides suflicient resistance against outside forces, and the annular beaded stop 42, together with the in-turned edge of the casing 40, suitably positions the packing and its armor in desired relationship to the casing. It will be noted that all of the casings have their ends in-turned about the holder for the packing so as to comprise a. unitary structure.

In Figure 4 is shown a modification of the armored packing illustrated in Figure 3 wherein there is provided a shaped leather or other fiexible element 54 mounted in an outer sheath or the like 56 of relatively heavy metal and a corresponding inner sheath 58 of thinner metal, this inner sheath, however, having itsinner periph-v ery 60 turned at approximately a right-angle and thereby adapted to bear against the correspondingly turned portion of the leather packing 5.4.

The action of this is somewhat similar to the action of the part 32 shown in Figure 2. These inwardly turned ledges may be made in the shape of spaced fingers rather than a continuous ledge or lip, if desired.

In Figures 5 and 6, there are shown embodiments of a combination packing element wherein only half, namely that shown at 62 and 68 respectively may be of some other flexible material cheaper than leather, as, for example, heavy paper, a leather substitute, impregnated cloth or anything which will answer the purpose.

The preferable method of joining the leather to its companion piece is either by stitching, for

which purpose heavy thread or light wire may be used, or by simply gluing as illustrated by the line 12 in Figure 6. The joint is preferably made beveled as shown in Figures 5 and 6 so as to allow of a better bending at the required line or of a simple offsetting as embodied in the structure shown in Figure 1. The saving of leather in such a structure amounts to considerable, and inasmuch as the portions 56 and 68 are not subjected to wear, and are impregnated or otherwise treated so as to be grease proof, the actual operating result is the same in either instance, and a satisfactory construction is produced.

It will be seen that herein is provided a novel and useful type of grease retainer which, for simplicity of construction and essential strength combined with lightness and necessary leakproof elements is highly satisfactory. The manufacture and assembly of the various parts is also comparatively simple, thereby providing a more satisfactory construction from the purchasers viewpoint, while the use of combinations of leather with other elements for the packing itself produces a considerable saving.

I am aware that many changes may be made and numerous details of construction varied throughout a wide range without departing from the principles of this invention, and I, therefore, do not purpose limiting the patent granted hereon otherwise than as necessitated by the prior art.

I claim as my invention:

1. A grease retainer, comprising an outer shell having one side wall, an inner shell fitted into the outer shell, and with one face forming another side wall of the retainer and a flexible packing element, said inner shell comprising an armored support for the packing element, said packing element being L-shaped in cross-section and with one leg clamped and supported by the inner shell, said inner shell being U-shaped in cross-section with one leg embedded into adjacent portions of the packing element, and a relatively heavy metal washer inserted in said U- shaped shell with its inner periphery substantially contacting the adjacent outer periphery of the packing.

2. A grease retainer, comprising an outer shell having one side wall, an inner shell fitted into the outer shell, and with one face forming another side wall of the retainer and a flexible packing element, said inner shell comprising an armored support for the packing element, said packing element being L-shaped in cross-section and with one leg clamped and supported by the inner shell, said inner shell being U-shaped in cross-section with one leg embedded into adjacent portions of the packing element, and a relatively heavy metal washer inserted in said U- shaped shell with its inner periphery substantially contacting the adjacent outer periphery of the packing, the other leg of the U-shaped shell being likewise bent inwardly to correspond to. the shape of the packing and acting against the corresponding bent portion of the packing.

3. A grease retainer, comprising an outer shell having one side wall, an inner shell fitted into the outer shell, and with one face forming another side wall of the retainer and a flexible packing element, said inner shell comprising an armored support for the packing element, said packing element being -shaped in cross-section and with one leg clamped and supported by the inner shell, said irmer shell being U-shaped in cross-section with one leg embedded into adjacent portions of the packing element, and a relatively heavy metal washer inserted in said U- shaped shell with its inner periphery substan-- tially contacting the adjacent outer periphery of the packing, the other leg of the U-shaped shell being likewise bent inwardly to correspond to the shape of the packing and acting against the corresponding bent portion of the packing, and a spacing member between the shells contacting each of same.

4. A grease retainer, comprising an outer shell having one side wall, an inner shell fitted into the outer shell, and with one face forming another side wall of the retainer and a flexible packing element, said inner shell comprising an armored support for the packing element, said packing element being L-shaped in cross-section and with one leg clamped and supported by the inner shell, said inner shell being U-shaped in cross section with one leg embedded into adjacent portions of the packing element, and a rela-- tively heavy metal washer inserted in' said U- shaped shell with its inner periphery substantially contacting the adjacent outer periphery of the packing, the other leg of the U-shaped shell being likewise bent inwardly to correspond to the shape of the packing and acting against the corresponding bent portion of the packing, and a spacing member between the shells contacting each of same, together with a garter spring positioned in the space provided by the spacing member and acting against that portion of the packing beyond the in-turned leg of 'the U-shaped clamping element.

5. A grease retainer, comprising an outer cuplike shell, a flexible packing in the shell, said packing including a sleeve-like portion for engaging a shaft, and a flat peripheral portion integral with the sleeve-like portion, and holding means for the packing mounted on said peripheral portion, said holding means comprising a flat washer positioned in the plane of the said fiat peripheral portion and with its inner rim substantially contacting the outer rim of the packing and an armor over the washer and contacting both faces of the packing periphery.

6. A grease retainer, comprising an outer cuplike shell, a flexible packing in the shell, said packing including a sleeve-like portion for engaging a shaft, and a flat peripheral portion integral with the sleeve-like portion, and holding means for the packing mounted on said peripheral portion, said holding means comprising a flat washer positioned in the plane of the said flat peripheral portion and with its inner rim substantially contacting the outer rim of the packing and an armor over the washer and contacting both faces of the packing periphery, together with a spacer in the outer shell acting against the armor.

7. A grease retainer, comprising an outer cuplike shell, a flexible packing in the shell, said packing including a sleeve-like portion for engaging a shaft, and a flat peripheral portion integral with the sleeve-like portion, and holding means for the packing mountedon said peripheral portion, said holding means comprising a flat washer positioned in the plane of the said flat peripheral portion and with its inner rim substantially contacting the outer rim of the packing and an armor over the washer and contacting both faces of the packing periphery, and an inturned edge on saidarmor acting against the angle between the sleeve-like part of the packing and its periphery.

WILLIAM A. HEIN'ZE. 

